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Ch 2, 7th Grade
Test Description: Cells
Instructions: Answer all questions to get your test result.
1) An instrument that makes small objects look larger
A
microscope
B
telescope
C
spectroscope
2) Who said that all plants are made of cells?
A
Rudolf Virchow
B
Matthias Schleiden
C
Robert Hooke
D
Theodor Schwann
3) The condition of things appearing larger than they are
A
focus
B
magnification
C
resolution
D
classification
4) Compound microscopes have more than one lens.
A
false
B
true
5) By using compound microscopes, scientists can obtain pictures of objects that are too small to be seen with electron microscopes.
A
false
B
true
6) Made mostly of a strong material called cellulose, this helps protect and support the cell.
A
cell membrane
B
cell wall
C
lysosome
D
nucleus
7) RIbosomes are made in the
A
Golgi apparatus
B
mitochondria
C
endoplasmic reticulum
D
nucleolus
8) Lysosomes...
A
make energy from food
B
capture energy from sunlight
C
break down old cell parts
D
all of the above
9) To be specialized means to
A
do one kind of job
B
do all the jobs
10) A group of similar cells that work together to perform a specific function
A
tissue
B
organ system
C
cell
D
organ
11) When two or more elements combine chemically, they form a
A
atom
B
molecule
C
compound
D
element
12) Energy-rich organic compounds made of the elements carbon, hydrogen, and oxygen. They can be sugar or starch
A
carbohydrates
B
nucleic acid
C
protein
D
lipids
13) Cells store energy from ___ for later use.
A
carbohydrates
B
nucleic acids
C
proteins
D
lipids
14) A group of proteins that speed up chemical reactions that are necessary for life
A
fats
B
exocytosis
C
carbohydrates
D
enzymes
15) Contain the instructions that cells need to carry out all the functions of life
A
carbohydrates
B
proteins
C
nucleic acids
D
lipids
16) How much of the human body is water?
A
2/3
B
1/3
C
2/5
D
3/4
17) Cell membranes are made of
A
a double layer of proteins
B
a double layer of lipids
C
a single layer of lipids
D
a single layer of carbohydrates
18) Which type of transport requires energy?
A
osmosis
B
diffusion
C
endocytosis
D
facilitated diffusion
19) Which type of transport requires energy?
A
plasmosis
B
endocytosis
C
exocytosis
D
osmosis
20) In active transport, molecules move from areas of low concentration to areas of high concentration.
A
true
B
false
*select an answer for all questions
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